The magician shows a deck of cards that can be checked. In the middle of the pack there is a hole. Let a volunteer choose a card and sign it. The signed card is returned to the pack and the magician shuffles the cards. The magician puts a large bolt through the hole in the cards, and on the other side of the pack, the magician closed the bolt with a nut. Fan the cards open and show the pack from both sides, so that everyone can see that all the cards have the bolted through them. Suddenly, the magician pulls a card from the locked, fanned cards and to the surprise of everyone, it is the card that was selected and signed. Includes instructions, good condition.